Below (taken from the user guide) are the operating (working) and storage environment temperature ranges for my 19" Dynex LCD TV that was purchased in 2008.
- Do not use your TV in areas that are too hot or too cold, because the cabinet may warp or the screen may malfunction.
- Storage temperatures are 32 °F to 122 °F (0 °C to 50 °C).
- Working temperatures are 41 °F to 104 °F (5 °C to 40 °C).
- Do not place your TV in direct sunlight or near a heat source.
Based on the above, my TV would not be a good candidate for spending the winter in an RV where it could be subject to temperatures below freezing. However, I'm sure other manufacturers' TVs could be more tollerant than mine and, thus, a non-issue.
I've always removed my TV for the winter- even if it is an old CRT type.